How to display a warning message.

[Pedro Del Gallego]

hi,

I try to display a message in a jsp page. Is correct to use a
JOptionPane? There are other options to show a message from the Action
class ?

1 The user fill a form.
2 an action look in the database
3 if i have a empty result i show a warning message.

/* check the list */

final ModelForm form = (ModelForm) ctx.form();
if (form.getModelNameList().isEmpty())
{
        form.showMessage("please select another brand");
        form.setErrorMsg ("pleases select another brand");                    
        clearModel_onClick(ctx);
        return false;
}

/*   in form class  */
public void showMessage (
                String message)
        {
                JOptionPane messageBox = new JOptionPane ();
                JOptionPane.showMessageDialog (messageBox, message, "Warning",
JOptionPane.WARNING_MESSAGE);
                messageBox.setVisible (true);
        }

The problem if I use a JOptionPane the first time i used it will be
under the browser.

Thanks.

PS: If this is not the correct mail list please let me know.

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